*Salix fragilis fragilis
Leaf margins with course uneven glandular teeth. Leaves 6–15 cm long, glabrous from first; dark green above. Petiole with 2 glands towards the top. Male catkins 4–6 cm long, 10 mm wide. Rootlets red. Tree up to 20 m high. Widespread. Near fresh water. Introd. from Europe. Fl. spring. Crack Willow